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Maine Senate Fundraising

Incumbent Susan Collins is up for election in Maine's Senate in 2026. This race is rated as Toss Up. We estimate that $23.06M has been spent on this race over the last two years. Democrats have outspent Republicans by $6.17M over that time period, per our estimates.

Cumulative Spending by Party

Note: Recent data is often incomplete due to lags between spending and disclosure

Outside Spending

Committee
Candidate
Support/Oppose
Amount
Date
Description